>> john: welcome to "cbs evening news plus." i'm john dickerson. cbs news has obtained a homeland security bulletin warning domestic violent extremists are the most prevalent threat to america's energy supply. this as cbs's nicole sganga confirms the fbi and dhs are cutting or reassigning domestic terrorist prevention units. a wildfire in southern florida is now larger than the palisades fire that wiped out so many homes in los angeles in january. cbs's christiane benevides reports from the scene. and, a developing story. we wanted to hear more about that collection of long forgotten kodachrome film which revealed striking images of san francisco in the 60s and 70s. john blackstone has more on the search for the mystery photographer. those stories and more right after our news headlines. ♪ ♪

you're going to have to take the lorry. more than 1400 flights disrupted at london's heathrow airport after a fire at a nearby power station forced it to shut down flights. they've now been resumed. police say there is no sign the fire was deliberately set. president trump says he remains hopeful about a possible cease-fire deal between russia and ukraine. russian drones hammered the ukrainian port city of odesa, igniting fires and knocking down power. >> my husband was taken away from me in the middle of the night. it was one of the most terrifying times. >> john: the wife of columbia university grad student mahmoud khalil is speaking out in her first tv interview. her husband is accused of supporting hamas and is facing deportation. noor abdalla's full interview airs on cbs sunday morning. ♪ ♪

we begin tonight with a warning about our nation's energy supply. cbs news has obtained a department of homeland security bulletin that says domestic extremists and malicious foreign actors threaten energy infrastructure. cbs's nicole sganga joins me now with the latest. nicole, why is infrastructure, energy infrastructure, i should say, why is it the target? >> reporter: electricity is life-sustaining, john. the stakes are high and cybercriminals and bad actors know exactly that. not only are power outages devastating in their own right that they have a domino or downstream effect on other u.s. critical infrastructure. this bulletin highlighting that as we also expanded renewables. the attack surface grows. beyond that, we know the energy grid is already a vulnerable and expansive u.s. critical infrastructure sector that is easy to target. now, there are a range of

threats listed in this bulletin including cybercriminals with ransomware tax and state actors. most notably you alluded to it, domestic violent extremists are the most prevalent physical threat actors targeting energy electrical substations. what's more, they are sharing tactics online late and encouraging one another to target just that. >> john: nicole, you are reporting that there are cuts that dhs and the fbi. in the parts of those -- of the government they go after these domestic terrorists. >> reporter: yeah, that's exactly right. at the fbi, some shifted staff and cuts within the domestic terrorism operations sector. also an open question as to whether it will ultimately be disbanded. the statement from the fbi tonight saying that the fbi is committed to protecting the u.s. from many threats. but of course this coming the wake of the pardoning of more

than 1600 individuals connected to those january 6th riots. this administration already saying that's not our definition of domestic terrorism. within the department of homeland security, a little-known office known as cp3 responsible for tens of millions of dollars for counterterrorism programming throughout the united states. really important federal grants cooperation every workers work up there. that workforce has been reduced by about a third, john. >> john: nicole thank you so much. israel's defense minister threatening. the warning follows israel 'has intensified offensive which started tuesday. today the israeli military expanded its operation into gaza. more than 500 thes 500 palestine been killed since the --

the late. revoking the legal status of more than half a million immigrants currently living in the united states. this is where learning more about the venezuelans deported under the 18th century wartime law. i'm joined now by immigration reporter camilo montoya-galvez. let's start with the half a million -- remind us what that program is supposed to do. >> the trump administration is moving aggressively to dismantle president biden's immigration legacy and they are now in the process of terminating a process known as ch nv set up by the previous administration as a way to reduce illegal immigration of the u.s.-mexico border by offering would-be migrants are legal and safe way to come here without the use of the smuggler and without the use of illegal entries into the u.s. about half a million people from cuba, haiti, venezuela and nicaragua entered the u.s. under that process which required

american sponsorships from people who are citizens or legal permanent residents here. the next 30 days, there are work permits and deportation protections that will be lapsed and terminated by the department of homeland security which is warning that if these people do not voluntarily depart the country, job, they will be found, arrested, and deported from the country. in fact, the administration is saying that the people affected by this policy change should sign up to sub register on a smartphone app provided by the government and tell people that they will be departing the country. >> john: okay. tough to keep track of it all but you been keeping track of the venezuelan migrants into el salvador. what more do we know about that group? >> not only have the deportations to el salvador triggered this contentious legal battle here in the u.s., john. but also a debate about who was sent to that central american country. the administration is saying all the venezuelan men were sent there, 238 venezuelan nationals

part of the notorious transnational gang known as tren de aragua operably spoken to relatives and lawyers of the deportees and they are strongly refuting those claims saying that their loved ones, their clients have no criminal records in the u.s. or abroad and that they are not affiliated with this vicious gang and they have actually presented to us documents that do in fact confirm that many of these deportees do not have criminal records. i will say tha some officials have said this some of them do have criminal records and we should underscore that. >> john: camilo montoya-galvez, all over the story. thank you. high winds whipping a series of wildfires in florida. the largest has burned more than 26,000 acres in seven miami-dade county forcing major road closures. at this hour, 14 brushfires have been identified across the state. cbs's cristian benavides is in florida city. >> reporter: we met up with florida forest service firefighters that the geared up for another day of fighting of

this massive brushfire which has exploded in size since tuesday. >> this is a wind-driven fire. >> reporter: wildfire mitigation specialist ludie bond took us up see the areas of the fired already burned. >> with leaving pockets of unburned visitation. as the winds are shifting and changing, the fire will shift and change and move into those unburned areas. >> reporter: miami-dade fire rescue is working with the forest service to put out the blaze. from the ground and in the air. these helicopters can carry anywhere from 100 to 300 gallons of water. dipping into whatever resource they can find, something like this canal here in the everglades. one after another, they filled buckets to target areas that are too swampy for firefighters to reach. forest area supervisor thom colletti. >> the vegetation is dry but the ground is still saturated a deeper level. so we can walk on it but when we use our tract equipment, that's how we access these areas, the equipment get stuck. >> reporter: the fire has

intermittently shut down the only highway to the flori florida keys. >> i'm beyond frustrated. i'm hurting. >> reporter: robert finley booked a flight to see his hospitalized son in key west. >> to get to my baby. he's 18 years old but he will always be my baby. >> reporter: dry conditions could impact fire danger. >> we are in march. we have april and may to go. these drought-like conditions are going to continue for a while so many people to be safe, use caution, and be patient. >> this could be just the beginning. >> could be just the beginning. >> reporter: no homes have been destroyed but there are health concerns over the heavy smoke. this is the height of the spring break season and in addition to that, you have a nascar event that springing up to 46,000 people to the area. john? >> john: cristian benavides in florida city. thank you. now here are three things to know. the sun is more than 92 million

miles away from earth but tomorrow a nasa spacecraft is expected to get a closer look by coming within 4 million miles. the closest any man-made object has come to the sun. scientists hope the solar probe which launched in 2018 will help them learn how the sun affects the technology we use back here on earth. a one-of-a-kind baseball card of national league rookie of the year paul skenes was auctioned off for more than $1.1 million. why so much? it includes not just an autograph but a patch paul skenes wore on his rookie jersey sleeve. an 11-year-old boy who reportedly found the topps card will get $925,000 from the sale. the rest will be donated to los angeles fire relief efforts. and after jack lilley has died. he was best known for his work on the tv series "little house on the prairie." costar melissa gilbert pay tribute calling him one of her favorite people on the planet.

jack lilley was 91. as judges across the nation faced a surge in threats, will ask, is the country's system of checks and balances [ car engine revving ] get exceptional offers at your local audi dealer.

>> john: the american system of checks and balances is being tested as the federal courts grapple with the tidal wave of cases against the trump administration's weeping executive actions. we're also seeing calls for judges' impeachment and labeling court orders illegal when cases don't go the administration's way. return to jeffrey rosen, president and ceo of the national constitution center. jeffrey, thank you for being with us. can we start with, it's kind of been lost in this battle over venezuelan migrants. what judge boasberg was initially trying to sort out before it became a fight about that the justice department listened to him, what was the% constitutional principle he was trying to sort out at first? >> the constitutional principle is the president abiding by the law? he has invoked the alien enemies act of 1798. this is only the third time in american history this act has been invoked to deport people who are in the u.s. the other two times involved the war of 1812 and world wars one

and two. so never before has this act been invoked at a time that we are not in a declared war and the question is can the president decide that we are at war not with venezuela but in this criminal gang and then decide these people are members of the criminal gang without hearings and deport them? it's a serious constitutional question and may we know to the supreme court. serious questions about whether or not the president is acting within the law and that's what makes it so remarkable. the president has been denouncing judge boasberg at this early stage of the case. >> john: in his denunciation of judge boasberg, he has suggested basically that the person gets the votes makes the decisions. remind us the relationship between the executive and the juju theory. >> the relationship is one of total independence. the foundation of our system, separation of powers is that the president is not a king and the president is not above the law. on the people who ensure he's not above the law and is not a

king are independent judges and whenever his actions violate the constitution, those judges have a responsibility to say so. so that's why. at the very founding of our republic, chief justice john marshall thought the entire constitution and rule of law would be subverted if judges could be impeached because the president disagreed with their rulings. that's why when justice samuel chase was impeached in 1804, justice marshall worried his conviction would mark the end of the rule of law. he was so relieved when chase was acquitted, establishing the printable that judges cannot be impeached because presidents disagree with their rulings. that's why chief justice john roberts either day was correct to say that for more than 200 years, there's been a bipartisan principle that you don't impeach judges because you disagree with them. that's how seriously the stakes of this dispute are. >> john: jeffrey, there's also supposed to be in the three branches ambition fighting ambition. where is congress in this conversation? are they being ambitious in the

way the founders thought? >> you are so right to quote james madison and the federalist papers on ambition clashing with ambition. it's arguable congress is not performing the constitutional role of the framers thought. james madison thought congress would be the most dangerous branch, sucking all powers into its impetuous vortex as he said. the framers believed congress would vigorously assert its own constitutional prerogatives against a far weaker and more constrained executive, as overseen by judges. congress, for really decades, this is not a function of the trump administration, has delegated vast wilds of power to the president including over immigration, the domination of congressional acquiescence and deferential judiciary has allowe president to consolidate and accrete power and waste some of the founders feared. >> john: jeffrey rosen, president and ceo of the national constitution center. thank you so much. there's more to come on

"cbs evening news plus." >> what did you think when you first began to look at these photos? >> i was literally stunned by the quality of the work. >> john: we bring the mystery this is our last chance to help save thousands of holocaust survivors who are suffering in the former soviet union today. the needs that these forgotten jews have are something beyond anything you can imagine. have you eaten this morning? i ate the carrot, so i ate half of it yesterday, and i had it today for breakfast. and this is what she ate in two days, one carrot.

please pray for me! the international fellowship of christians and jews began this ministry to help elderly jews living in horrible poverty around the world. we urgently need your gift of $25 now to help provide one survival food box with all of the foods they critically need for their diet for one month. it breaks my heart to know that there are holocaust survivors who suffer to this very day. it's not only the painful memories of lost loved ones, but now with pensions of less than $2 per day, they live in some of the poorest conditions imaginable. i believe in god, but i sometimes feel maybe he forgot me. perhaps you could tell my story, and i will find a matching soul that would understand. i face hunger again. please don't delay.

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>> john: we reported a few weeks ago about a photographic mystery in san francisco. for tonight's "in depth" cbs's john blackstone puts one man's search for clues into focus. >> this was the further bus. >> reporter: bill delzell has a massive and mysterious collection of photos. there's no doubt about the time

and place. san francisco in the 1960s. >> jerry garcia. i think this was in golden gate park. >> reporter: the mystery is who was the photographer. and why did they leave behind hundreds of rolls of film never developed? >> somehow the work ended up in that storage unit was abandoned. a picker bought it, sold it to a collector. >> reporter: what's interesting about this is this film was completely unprocessed. so please rolls of film were discovered in a box or bag, and none of these photographs were ever seen by the photographer that made them. the collection passed through couple lands before bill delzell, a professional photographer himself, had a chance to see them. as you think when he first began to look at these photos? >> i was literally stunned by the quality of the work. >> reporter: the unknown photographer seemed to capture every element of an energetic and turbulent time in san francisco. from free concerts and

spontaneous celebrations to civil rights marches and in vietnam. all that come along with famous faces of the '60s counterculture. >> some people speculate that that's the best portrait ever done of timothy leary. it's not post-but it's capturd utterly exciting moment. they literally seem to be everywhere all the time. >> reporter: bill delzell is on a mission to identify the photographer and perhaps discover why these images were forgotten or abandoned. >> to think that someone spent five years capturing these iconic moments in time and then to have lost the work just hit me really hard. it was really unimaginable how that could have happend. >> reporter: and the mystery gets even deeper. there are still hundreds more photos that have never been seen by anyone. speak with mrs. 75 rolls of film that remain unprocessed. these canisters haven't been open for 60 years.

>> bill delzell raised money on kickstarter for processing the final parts of this photographic time capsule. >> could be up to 2700 images. if they're anything like the images we have artie processed it's going to be a spectacular collection. report and i with more photos to come, you could say this is a developing story. john blackstone, cbs news san francisco. >> john: what's the difference between using social media and for dissipating in a lab experiment? i'll tell you

>> john: ever feel like social media is a rigged experiment and we're the subject? one branch of that experiment, twitter, was founded on this day in 2006. yesterday was the birthday of

one of the great psychological experimenters, bf skinner. that one birthday follows the other proves the universe is sometimes right on the nose. skinner experimented with rats in a box. if they pressed a lever after a stimulus like a light, it released a food pellet. then he made the rewards unpredictable. sometimes it took two process. sometimes more. uncertainty about the rules made rats prss constantly. they grew vigilant, always person, never sure when the reward would come. you see why this reminded me of social media. we post on look for rewards, likes or comments. they supply an emotional charge. if the feedback is good we press the lever again. more, please. if it's bad, we press the lever again. chasing the hive. soon we loll, dad died, drawing our finger time and again over the sm smartphone glass.

feeds were explicitly designed to keep us pressing that lever. long before twitter, skinner's ideas raised alarms about human freedom. in a cover story on skinner, psychologist warned any manipulation of others behavior violates their essential humanity. regardless of the goodness of the cause that this manipulation is designed to serve. we are all in an experiment with uncertain consequences. unlike skinner's subjects we could leave knife or something. and cut him up. a legend in sports and business. george foreman has died. we remember his legacy and his ties to the bay area. plus, a 15 year old boy shot and killed during a robbery